gracias por su ayuda. thank you. >> the holidays are a time that many of us like to choose to show is our appreciation to the service providers that help us thought the year but how much of a tip isnough? 7 on your sidechael finy has the run did you know on tipping etiquette. >>reporter: hair stylist keep us looking good. mail carrier get us our mail rain or shine. sanitation worker do one of the dirtiest jobs around. holiday are a good time to show your appreciation with the tip. cindy is founder of advanced etiquette. >> tipping is supposed to be operational in most instances. and as a result it's something more personal. >>reporter: the surhave i of 1800 americans by shop smart found barber 7 an average tip of 10 dollars. teachers get an average 20 buck. so do hair dressers. mail carrier. manicurist. newspaper carrier. pet care providers and sanitation workers. gardener and lawn care workers slightly better at $25 and housekeepers get an average tip of 50 dollars. >> you tip what you what you have extra